Question about LaCie Photon20visionII 20.1" LCD Monitor

1 Answer

Won't turn on. Started turning itself off intermittently and then quit altogether. Have replaced power supply cord but this did not remedy the problem.

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  • Kandi Cook Nov 10, 2010

    Are you sure that the new power cord is the right voltage and appropriate for use on your monitor? If you just kept trying old cords until you found one that fit the connection on the monitor, please check the voltage requirements listed on the back of the monitor itself and compare them with the voltage facts listed on the plug head of the cord or someone on the side of it. Sometimes the letters/numbers on the cord are hard to find and very small, but they have to be there.

    If you have checked the above, and found that the cord is appropriate and not the problem then continue below and answer my questions so that I can help you solve this problem.

    Sounds like it is over heating.

    Lets eliminate this possibility before we try and troubleshoot further ok?

    Unplug the monitor from the power source and disconnect it from your computer. Push the power button on and hold it for a few seconds to make sure no electricity is in it. Then get a can of air and blow the dust out of the vents on the monitor until your sure that there is no dirt or debris affecting the ventilitaion system. Then plug the power source back into the wall without connecting the monitor to the computer. Turn the monitor on. You should see a message that says something like "no video" for a while then it will go to black screen but a normal monitor should stay on and continue to remain connected with the power light on that is either red or green.

    Tell me if the monitor remains turned on or if it turns itself off. Give it a good five minutes or so.

    If it stays on, then turn it off and connect it back on to the computer and turn it on. Tell me if the problem is solved? If not, then tell me your findings through the comment section on the orignal post of your problem on this site and I will help you find a solution.

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  • 11,361 Answers

More likley to have bad power supply due to bad caps, look for that first.
Please read my guide and learn about bad caps and failed monitors pictures.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://en.wikipedia.org/wiki/Capacitor_plague
Learn about bad caps: Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Posted on Nov 10, 2010

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